Developers Guide

Volume management
21 Dell EMC SC Series with Red Hat Enterprise Linux 7x | CML1071
2.9.1 Capturing a boot from SAN snapshot volume
Capturing a snapshot volume of a boot from SAN volume is straightforward in SC Series storage. However, it
is recommended to freeze any non-LVM-bound XFS volumes on the Linux host in order to quiesce any I/O
before the snapshot volume is captured.
In this scenario (with a default Linux installation), the / and /boot filesystems are XFS-based, and frozen with
the following commands.
# xfs_freeze -f /
# xfs_freeze -f /boot
Capturing a snapshot volume of a boot from SAN volume with SC Series storage is performed as follows.
1. Right-click the volume and select Create Snapshot.
2. Give the volume a 1 week expiration time and click OK to create the snapshot.